282 PRESIDENT OF GEOLOGICAL SOCIETY CHAP, ix 



for six months without ceasing over that passage at 

 the end of Jukes s memoir on the Irish rivers, in which 

 he discusses the valley of the Rhone above the Lake 

 of Geneva? It is admirable and true, and by r lakins ! 

 he never saw the location ! Tell me not where is fancy 

 bred, but after my Frankland change of climate article 

 comes out, 1 if any other good sound argument occurs 

 to you that I have not used. Bauerman has drawn 

 a wheel so true that Best has to put a heavy weight 

 on it to keep it from running away ! 



BEAUMARIS, $oth July 1864. 



MY DEAR GEIKIE I am as busy as man can be, 

 and am really getting fast on with that big Memoir, 

 which I trust will be for fifty years a text -book to 

 the Silurian geology of North Wales. I have read 

 Sir R. s counterblast in proof [above referred to], and 

 I told him I must reply to it. How on earth can he pit 

 Dawson against Logan ? Does he remember also that 

 he always thought that Switzerland was another case 

 of water-drifting ? For his protest and Lyell s I care 

 not a rush. Lyell for years scarcely believed Agassiz, 

 and used to have a special anti-Darwin chapter till 

 after the great book \Origin of Species} came out. He 

 is afraid of time now, and none of them know any 

 thing about denudation and the true physical behaviour 

 of rock-masses. I lately had a very satisfactory letter 

 from Hooker on the subject. The worst of it is that 

 one can scarcely hope to convince them, or the old 

 geological world generally. You can t make a colour 

 blind man see colours. None of them ever mapped a 

 country, as we have done, and disturbed countries to 



1 Dr. Frankland s paper on the Physical Cause of the Glacial Epoch will be 

 found in Phil. Mag. May 1864. 





